PEMEKATAN PROTEIN DALAM SUSU DAN KECAP MENGGUNAKAN MEMBRAN SERAT BERONGGA
Abstract: Concentration of
protein which found in freshmilk, sweet ketchup and salt ketchup have been done
byusing hollow fiber polysulfone membrane with differentmolecular weight cut -
off (MWCO). Membranes usedin these experiments have MWCO 66,000, 87,000 and
149,000 Dalton. Experimental were conducted bycontinues flow system and parameters
observed in these experimental were protein, sugar and salt,
respectively.Protein infresh milk rejected by membrane above 98 %,but all of
sugar pass through to the permeate side. Forsweet ketchup feed sample,
rejection coefficient towardsprotein was smaller than feed fresh milk. The
higherrejection coefficientfor sweet ketchup was 48 % for themembrane with MWCO
66.000 Dalton. Rejectioncoefficient of membrane towards protein for salt
ketchup sample was smaller than sweet ketchup sample. For saltketchup, the
higher rejection coefficient towards proteinwas 27 % for the membrane with MWCO
66,000Dalton. Rejection coefficient of membrane towardsNaCl for feeding
solution sweet ketchup and saltketchup were in the rlJ.1Jgefrom 8.74 to 23.96
%.
Penulis: Syahril Ahmad
Kode Jurnal: jpkimiadd090260
